Conveyer.



H. J. NIELSEN, C. J. BORGLIN & L. G. A. SOEBORG.

' GONVEYBR.

APPLICATION FILED MAY 7, 19112.

1 ,069, 1 63. Patented Aug. 5, 1913.

2 SHEETS-BHEET 2.

WITNESSES: l/VVE/VTOHS H04 65/? J. NIELsE/v Can/n5: J. Barre/4N. LUDV/ 6/). 5055026.

UNITED TATE PATENT @FFTQEQ HOLG-ER J. NIELSEN AND CHARLES J. BORGLIN, OF SAN FRANCISCO, AND LUDVIG C.

A. SOEBORG, OF ALAMEDA, CALIFORNIA, ASSIG-NORS TO BEAR MILLING AND MIN- ING COMPANY, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF CALIFORNIA.

CONVEYER.

Specification of Letters Patent.

Original application filed November 25, 1911, Serial No. 662,298. Divided and this application filed May 7, 1912. Serial No. 695,691.

To all whom, it may concern Be it known that we, I-loLonR J. NIELSEN, CHARLES J. BORGLIN, and Ltmvro C. A. Someone, the former a subject of the King of Great Britain and the two latter citizens of the United States, the two former residing at San Francisco and the latter at Alameda, in the counties of San Francisco and Alameda, respectively, and State of California, have invent-ed certain new and useful Improvements in Conveyers, of which the following is a specification.

Our present invention relates to conveyers well adapted for use with ore concentrators, and the like, as disclosed in our copending application filed November 25th, 1911, Serial No. 662,296, from which the present application has been divided out.

The principal objects of our invention are, first, to provide a conveyer which has a relatively large field of movement depositing the material to be conveyed at a certain or central point without bodily moving thev conveyer and appertaining devices, and whereby the receiving end of the conveyer may be moved as the workings progress the point of deposition remaining practically the same, second, to provide means for driving the conveyer and permitting movement of the conveyer frame without stopping the drive means or readjusting the same; and, third, to construct the conveyer wherever practical, of standard materials thus facilitating construction and reducing the cost thereof to a minimum.

In the drawings, forming a part of this specification: Figure 1 is a top plan view of the conveyer embodying our invention. Fig. 2 is a side el-evation of the same. Fig. 3 is an end elevation of the conveyer, at its deliver 7 end, and a portion of the supporting track therefor. Fig. 1 is a bottom plan view of the supporting carriage used in connection with the conveyer.

Similar characters refer to similar parts throughout the views.

The conveyer proper includes a suitable frame, which may be built up of longitudinal members 2, struts 3, and diagonals 1. The delivery end of this frame has bearings for a shaft 5, suitably supported as will be subsequently described, upon which is keyed or otherwise carried a conveyer belt drum 6. The receiving end of the frame carries longitudinally movable bearing blocks 7 for a shaft- 8, upon which is carried a second belt drum 9, each bearing block being adjusted by a set screw 10. A plurality of guide rollers 11 are suitably carried by the struts 3 and alined to support the upper portion of the belt 12 which serves for carrying the material deposited thereon. This belt 12 is trained about the drums 6 and 9, which together with guide rollers 11 are preferably dished peripherally to give the belt 12 a concavo-convex section when passing through the zone of transportation. A plurality of secondary guide rollers 13 are also provided, suitably carried by struts 3, to support the under run of belt 12.

lVit-h the view of elevating the delivery end of the conveyer frame, we provide track framework including uprights 14: and horizontal members 15, suitably secured together, a track 16 being mounted upon such frame. This track 16 is designed to support and guide a carriage, designated gen erally at 17, which is operatively connected to the delivery end of the conveyer, and is preferably circular in plan, although it may be are shaped according to the field of magnitude of the angle of movement it is desired to provide for the conveyer proper. The track 16 has preferably an I section, and therefore may be provided from a standard rolled section. In the case of an I section, the top flanges of the track serve as the supporting tread and the web thereof as the guiding tread.

The carriage 17 includes a base plate 18 having lugs 19 positioned to extend laterally at the side of the web of the track 16 in close proximity to the outer margins of the upper flanges thereof. These lugs carry a plurality of supporting rollers 20 riding upon the upper flanges and guide rollers 21 riding upon the web at both sides thereof. Thus the base plate 18 is supported to ride upon the track and prevent it from becoming displaced with respect thereto.

Carried by the plate 18, superadjacent thereto, are bearing blocks 22 for the before mentioned shaft 5, whereby the conveyer frame is pivotally connected to the carriage 17, to swing in a vertical plane. Bearing blocks 23 hung in an idler 2 1; are provided for a purpose to be subsequently disclosed. The shaft 5 has keyed, or otherwise secured thereto, a driven pulley for rope belting used as a means for imparting movement to the drums 6.

Certain of the horizontal frame members may carry a beam 26 which supports a step hearing I? for a vertically disposed drive shaft 528, which is supported concentric to the arc of the track 16 serving as a support for the carriage 17. A stabilizing bearing for the shaft may be provided in a bar suitably secured to track 16. This shaft 28 carries a driven pulley 3 actuated through belt 32 from any suitable source of power, and a driving pulley 31 in operative relation to the said driven pulley 25, the pulley 31 being rotatable in a horizontal plane.

lilovement from pulley 31 is transmitted to pulley by means of endless rope belting 33, in such a manner as to always be in operative motion transmitting relation regardless of angle of the longitudinal axis of the conveyor fran'ie to the carriage 17, or the position of the conveyor frame and its carriage 17 to the drive shaft 28, within the bounds of movement provided for by track 16. his rope belting is trained successively, starting from pulley 31, around pulley 25, back and around pulley 31, then over idler 24-, down and around an idler weighted as at 35, then up and over pulley and back to the starting point at pulley 31. It will be seen that the weighted idler takes up the stretch of the rope and keeps it always in the same tension, still permitting movement of the carriage about an, arc described concentric to the axis of shaft 28. Below the discharge end of the conveyor proper, and preferably carried by the track 16, is a funnel-like hopper 36, which flares out so as to receive the material, carried by the conveyer brake belt, at any practical position of the conveyer proper, provided for by the carriage l7 and track 16.

It is obvious that the construction of the conveyors and track elevating framework hereinbefore described may be modified,

circumstances may require, without departing from the spirit of our invention.

The operation of the device is as follows: Assuming, as for. example, the conveyor is used for conveying mineral bearing earth substances to a concentrator, the track frame is positioned in close proximity to the con centrator and in a convenient position adjacent the working. As the earthy substance is mined, or in other words, as the work progresses, the conveyer proper is moved with its receiving end to be in a position such as to receive the material directly as it is mined. In the device as disclosed, the conveyor proper has an arc of movement of, somewhat less than 180 degrees, limited by the cross bar 29, however, it is obvious that the construction might be such as to permit an angular movement of a magnitude greater or smaller than this, the hopper being so constructed as to receive the material from the delivery end of the conveyor proper regardless of its position about the track.

lVe claim:

In a conveyor structure, the combination with suitable framework, a horizontally disposed are shaped track, a conveyor provided with movable conveying means, a carriage operatively connected to said conveyer at its delivery end, mounted upon said track, a driven pulley carried by said carriage for actuating the movable conveying means of said conveyer, an idler carried by said carriage, a driven pulley revoluble in a horizontal plane with its axis coinciding with the center from which the arc of said track is struck, a weighted idler, and an endless rope belt trained about said driving pulley, driven pulley, first mentioned idler and weighted idler, substantially as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

HOLGER J. NIELSEN. CHAR-LES J. BORGLIN. LUDVIG C. A. SUEBORG.

Vl itnesses M. M. ESCIIERIOH, L. Esormmcn.

Copies of this patent may be obtained for five cents each, by addressing; the Commissioner of Patents.

Washington, D. O. 

